Travel Information
Compare coach and train for Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB)
Omio recommends booking the coach as it is the most popular option from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB) among Omio's users. If you are prioritising price take the coach with prices starting from £7. For those with little time consider booking a train which can get you there in 2h 20m. The ticket price range depends on the travel mode: a coach costs an average of £7, and a train costs an average of £98.
Distance: 188 km
Compare bus with
Most popular Coach | Train |
|---|---|
£7 Average Price Cheapest | £98 Average Price |
3h 43m Average total duration 3h 13m Onboard + 30m Additional time* | 2h 50m Average total duration Fastest 2h 20m Onboard + 30m Additional time* |
![]() Most popular bus company | ![]() Most popular train company |
Direct Options | Direct Options |
Compare prices and tickets Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB) by coach or train
Compare coach and train prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
28 May
29 May
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31 May
01 Jun
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03 Jun
Why should you book Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB) coaches with Omio?
Why book with Omio vs National Express?
- Compare with other providers: On Omio, you can not only buy tickets for National Express, but also compare tickets for the likes of Megabus to find the best option for your trip from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB).
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare National Express with all available travel options, which are bus and train to ensure you get the best deal for traveling from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB).
Why book with Omio over Wanderu?
- Compare with other providers: On Omio, you can also compare tickets for the likes of Megabus to find the best option for your trip from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB).
- Multiple modes of transport: Omio allows you to compare travel options including bus and train to find the ideal travel option from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB).
Journey information
Overview: Bus from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB)
Buses from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB) run on average 40 times per day, taking around 3h 13m. Cheap bus tickets for this journey start at £7 if you book in advance.
There are 35 coaches per day. The earliest coach runs at 22:30, the last at 22:30. The fastest coach covers the 188 km distance in 3h 15m.
Distance 188 km |
Average bus duration 3h 13m |
Cheapest ticket price £7 |
Buses per day 40 |
Direct buses 35 |
Fastest bus 3h 15m |
First bus 22:30 |
Last bus 22:30 |
Cheapest Month Mar |
Cheapest Day Mon |
High Season Apr - Jun |
Low Season Jan - Mar |
Busiest Day Sat |
Least Busy Day Wed |
Bus providers: National Express, Megabus from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB)You can travel by bus between Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB) with National Express, Megabus for as low as £7. When you search for schedules and tickets, Omio will show you the best journey
National Express
Megabus
FAQs: Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB) coach
Find answers to the most common questions about traveling from Heathrow Terminals 2 & 3 (HXX) to Cardiff Bay (CDB) by coach. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest coach, the cheapest option, or tips for making the most of your visit at Cardiff Bay (CDB), this guide helps you travel smarter and with confidence.

- Megabus
- Megabus is ADA-compliant and provides assistance to customers with disabilities, including those using wheelchairs or mobility scooters, and those with service animals.
- National Express
- Assistance
- Priority seating
- Accessible toilets.
- Megabus
- Megabus reservations cannot be canceled or refunded, but they can be traded in for another journey up to 3 hours before your original scheduled departure for a fee.
- National Express
- You can cancel your ticket up to 24 hours before departure for a refund minus a cancellation fee. Changes can be up to 24 hours before departure for a fee.
- Megabus
- One piece of luggage is included per passenger reservation. For guidance, a piece of luggage must not exceed 62 inches (length + width + height) and should not weigh more than 50 pounds (23kg).
- National Express
- Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
- Megabus
- Additional luggage can be purchased by buying an additional travel ticket in advance or by adding up to two additional pieces when booking for a fee.
- National Express
- 10€ per additional bag.


